Interference of Temporally Distinguishable Photons Using Frequency-Resolved Detection

Venkata Vikram Orre, Elizabeth A. Goldschmidt, Abhinav Deshpande, Alexey V. Gorshkov, Vincenzo Tamma, Mohammad Hafezi, Sunil Mittal

Research output: Contribution to journalArticlepeer-review


We demonstrate quantum interference of three photons that are distinguishable in time by resolving them in the conjugate parameter frequency. We show that the multiphoton interference pattern in our setup can be manipulated by tuning the relative delays between the photons, without the need for reconfiguring the optical network. Furthermore, we observe that the symmetries of our optical network and the spectral amplitude of the input photons are manifested in the interference pattern. We also demonstrate time-reversed Hong-Ou-Mandel-like interference in the spectral correlations using time-bin entangled photon pairs. By adding a time-varying dispersion using a phase modulator, our setup can be used to realize dynamically reconfigurable and scalable boson sampling in the time domain as well as frequency-resolved multiboson correlation sampling.

Original languageEnglish (US)
Article number123603
JournalPhysical review letters
Issue number12
StatePublished - Sep 17 2019
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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